Seeing colors in meditation

I have been meditating for about 6 months, and I use your cd that moves one through the chakras.  I usually meditate in the dark in front of a mirror, because the first time I meditated, I happened to glance in a mirror, and I saw wondrous colors.  The colors, mostly red but also dark blue, orange and yellow, appear as bright points or watery shapes or patches, and they appear randomly around my face and upper body.  I cannot find any comments on seeing colors in this way in any reading I have found.  Can you place this experience in some kind of perspective for me?  Thank you so much.